Half to the knowles loom works



(No Model.) 2 Sheets-Sheet-l.

' R. B. LOYND.

PILE FABRIC LOOM.

No. 410,323. Patented sept. s, 1889.

N, PETERS, Phnmumngmphf. wmmgmn. n. c.

(No Model.)

. R. B'. LOYND.

PILE FABRIC LOOM.

No. 410,323. Patented Sept. 3, 1889.

2 sheets-'sheen 2.

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N. Pneus. Phonemhugnph", wnmngm'n. cu

UNITED STATES PATENT OFFICE.

RICHARD B. LOYND, OF WORCESTER, MASSACHUSETTS, ASSIGNOR OF ONE- HALF TO THE KNOVLES LOOM WORKS, OF SAME PLACE.

PILE-FABRIC LOOM.

SPECIFICATION "forming part of Letters Patent No. 410,323, dated September 3, 1889. Application led October l, 1888. Serial No. 286,868. (No model.)

To all 'whom it may concern: v

Be it known that I, RICHARD B. LoYND, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements inPile- Fabric Looms 3 and I do hereby declare that the following is a full, clear, and exact description thereof, which, in connection with Jthe drawings making a part of this specificaion, which my invention belongs to make and use the same.

My invention relates to pile-fabric looms,- for weaving Brussels, and Tilton carpets and' wires are used;l

other pile fabrics in which l and the object of my invention is to simplify are omitted in Fig. 1.

the construction of such looms and to so arrange the mechanisms for making the shed and inserting the lling, that the warp-yarn can be more tenderly handled than in the looms heretofore used, thereby increasing the rate of production.

I carry out my invention by doing awa-y with a movable comber-board and its necessarily heavy operating mechanism and substitute therefor a comparatively light and quickly-operated drop-box mechanism, in the manner to be hereinafter fully described.

Referring to the drawings, Figure 1 is a front elevation of a portion of aBrussels-carpet loom sufficient to illustrate the nature of my invention. Fig. 2 is a section on line X X, Fig. 1, looking in the direction of the arrow, same figure, someof the parts shown in said Fig. 1 being left off and some additional parts being shown,which, for the sake of clearness, Figs..2, 3, and 4. are diagrammatic representations of different sheds and positionsof the shuttle.

In the accompanying drawings', `1 is the loom side, 2 the main shaft, 3 one of the cranks, and 4. a crank-connector.

5 and f3 are arms of one of the toggles, through which, from the crank 3, the lay 7 is oscillated, all as ordinarily constructed. The lay 7 is provided with single drop-boxes 8, iitted to slide in guides 8', in the usual way. Fastened to the drop-boxes are lifter and will enable others skilled in the art to guide rods 34, Fig. 1, the lower ends of which slide freely in holes in Vthe tops of rockerirons 35. yFast on lifter-rods 34. are studs 36, to which are pivoted connectors 37, the lowel` ends of which are pivoted to arms 38, fast upon' a shaft 39, which extends across the loom and is journaled freely in bearings on the loom sides. Arm 38 on one side of the loom is extended back of the shaft 39 and bears upon a cam 40, 'fast on the main shaft 2, by which and the connections just described the boxes are raised and. lowered in proper time.

The picker-stick 57 one at each side of the loom-which drives the shuttle across the lay, is of the ordinary construction and operation, and is pivoted at its lower end on the rockeriron 85, and operated by means of pickerarms o n the main shaft 2 and intermediate mechanism (not shown) in the ordinary way.

A spiral spring 5S, connected with the lower end of the picker-stick `through a strap 59, serves to return the picker-stick to its normal position, all inthe usual way. The lingoes 9 are fast upon the lower ends of the harnesscords 10, which lead up to the Jacquard machine, (see Fig. 1,) which is supported on overhead timbers stayed by posts l1 extending up from the loom sides, and which is operated by cam 41, Fig. 1, fast on the main shaft, lever 42, pivoted on the loom side and bearing on the cam 41 through roll 42', and connector 43, pivoted at its lower end to the end of camlever 42 and at its upper end to arm 44, fast onthe Jacquard shaft 45, all in the usual m3111181'. A The comber-board 12 is here shown as bolted rigidly to ears 1l on the posts l1. Heretofore the comberboard has been supported on slides fitted to travel in guides on the posts 11, being moved up and down in proper time by the connector 13, lever 14, and cam15,fast on the mainA shaft. These parts, which are dispensed with in my improvements,are shown in dotted lines, Fig. 2. The cotton-warp harnesses 16, Fig. 2, are

`operated in the usual way by levers 17 from the cam-shaft 18, geared to the main shaft at right angles' thereto.

The heavy lines 19 represent the worsted warps controlled by the jacquard and comberboard, and the light lines 2O the cotton-'warp threads controlled by the cam-harness motion.

2l is the cloth-point and 22 a section of the fabric extending from the cloth-point over the take-up roll 23. v

The cotton warps 2O are drawn from the beam 24,' Fig. 2,and the worsted threads from spools hung in creeis at the back of the loom, (not sho\vn,) all in the usual manner.

The Wire-motion shaft 46, Fig. l, is supported in bearings on the-extension 47'of-the loom-frame, and is geared to the mainshaft by a pair of bevel-gears 48. The crank 40 is fast on the forward end of the shaft 46, and has pivoted to it one end of connector 50, the other end of which is pivoted to the lower end of arm 5l,pivoted at 52 on the extensionframe 47. To the top of arm 5l is pivoted one end of a connector 53, the other end of which is pivoted to the wire-motion slide 54, fitted to slide freely on the guide 55, all in the usual manner.

Y I willnow describe the successive steps in weaving Brussels carpet on the loom above described, first in the usual way and then in my improved way.

Fig. 2 represents the loom in position for the wire pick, in which one frame or one thread from each dent in the reed of the worsted warps is lifted by the jacquard into the upper line 25, Fig. 3, of the shed. The comber-board is lifted to the top of its travel at this point, taking all the other worsted warps to the center line 26 of the shed, Fig.

One frame of the cotton warp is at the Y center line 26 and the other in the bottom line 27 of the shed. vThe shuttle is now sent across, inserting a filling' inthe lower shedopening 2S, Fig. 3, and at the same time wire 29 is thrust by the wire-motion mechanism into the upper shedopening, Fig. 3. The sheds are now shifted, as represented in Fig. 4, the cotton warps remaining as they Were in Fig. 3, the jacquard and comber-board coming down and letting all the worsted-threads into the bottom line 30 of the shed, Fig. 4. The shuttle is now sent back through the shed-opening 3l, Fig. 4, the cotton wai-ps shifted, and the operation repeated.

In my improved method the wire pick is identical with that just described, except that the comber-board is fixed and the loom so tied up that all the worsted wai-ps which rest on the comber-board, by means of the usual knots 56 in the harness-cords, are brought into the center line 26 of the shed, the jacquard lifting from that position one frame into the upper line of the shed. The wire and iilling having been put in on this pick, the jacquard comes down, returning the wire frame to the center line with the other worsted warps. The cotton warps,which during the wire pick were in the center line 26, Fig. 3, are now lifted to the upper line 32 of the shed, Fig. 5,

and the cotton Warps which were in the bottom line are raised to the center. The dropbox mechanism is operated, bringing the shuttle-boxes level with the top shed-opening, and the shuttle is sent back on the warps, as shown at 33, Fig. 5, instead of on the race. The cotton warps are noav shifted and returned with the shuttle-boxes to the position shown in Fig. 3, and the operation is repeated. It will be observed that in both methods the Wire is always put in above the center line of the shed and the body of the worsted Warps, while at the same time a shot of filling is sent across on the race of the lay under the body of Worsted warps, and also that the return shot of filling goes in above all the Worsted Warps.

In the old method with fixed shuttle-boXes, in order to get the shuttle across above all the Worsted Warps, it is necessary to lower the comber-board to bring said warps to the race. In my improved method I leave the worsted warps where they are in the center of the shed and lift the shuttle -boxes to geta filling over them, said warps acting as a race for this shot, the same as is commonly done with the top shuttle in double-shuttle Weaving.

It will be further observed that in the old method the worsted warps have to travel from position 25 to position 27, Fig. 3, while in my improved method they only travel half that distance, and that the strain and friction of the warps in the heddles and against each other is correspondinglyreduced in consequence.

By leaving trie comber-board stationary I avoid lifting in a siioframe weave ive-sixths of thelingoes, dispensing with the heavy cams and the connections necessary to do that work, and substituting for it the comparatively light and easy drop-box shifting mechanism, which, having only a single lift and that at regular intervals, is made very simple.

I have described herein aweave, two picks to the Wire, or the common Brussels weave; but my method is equally adapted to the common Vilton Weave, three picks to the wire, or any other Weave, as desired. Sometimes an additional cotton Warp, called a stuffer, is put into the Weavevhich always remains in the center of the fabric with the body of Worsted warps, which are not carried up for the wire pick. In order to do this in the old method the stutter-harness has to be shifted, after the wire pick is put in, from the center line of the shed, Fig. 3, to the bottom line, same figure. In my improved method the stuffer will always remain in the center line of the shed, thus dispensing with the harness-frame connections and cam for this purpose.

By my invention I am enabled to make a lighter and quicker running loom and thereby to increase the production.

TOO

IIO

Having thus described myinventiongwhatl board, for the purpose stated, substantially claim as newg'an'd desire to secure' by Letters as set forth.l Patent, is- A In a loom, the combination, with the jac- 5 quard and harness-frames, and means for Witnesses:

operating the same, and lohe lay, filling, drop- HENRY H. MERRIAM, box, and Wire mechanisms, of a flxed comber' `JOHN C, DEWEY.`

RICHARD B. LOYND. 

